# Carel Controlla vs BITZER Smart Connect

The clearest difference is iOS requirement: BITZER Smart Connect at 13.0 against Carel Controlla's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Carel Controlla ships an update every 3 months, BITZER Smart Connect every 4 months. The most recent releases landed on September 21, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Carel Controlla | BITZER Smart Connect |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Size | 52 MB | 191 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CAREL INDUSTRIES S.p.A.](https://appshunter.io/developer/1797037609) | [Bitzer Electronics A/S](https://appshunter.io/developer/1055629875) |

## What reviewers say

### Carel Controlla

[App page](https://appshunter.io/ios/app/carel-controlla/id1412655267)

**Features:** macOS Compatibility

**In-app purchases:** none


### BITZER Smart Connect

[App page](https://appshunter.io/ios/app/bitzer-smart-connect/id1483433486)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Carel Controlla free?

Carel Controlla is free to download, with no in-app purchases.

### Is BITZER Smart Connect free?

BITZER Smart Connect is free to download, with no in-app purchases.

### Do Carel Controlla or BITZER Smart Connect have ads?

Neither Carel Controlla nor BITZER Smart Connect shows ads.

### Which is updated more often, Carel Controlla or BITZER Smart Connect?

Carel Controlla ships an update every 3 months, and BITZER Smart Connect every 4 months. Most recently, Carel Controlla was updated on September 21, 2026 and BITZER Smart Connect on September 10, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*